HST Calibration Reference Data System (CRDS)

 

Operational References (under context hst_1157.pmap)

acs

hst_acs_0534.imap      Toggle N/A


atodtab ---- Analog To Digital Lookup Table

biasfile ---- Bias Frame

bpixtab ---- Data Quality (Bad Pixel) Initialization Table

ccdtab ---- Ccd Parameters Table

cfltfile ---- Coronagraphic Spot Flat Image

crrejtab ---- Cosmic Ray Rejection Parameter Table

d2imfile ---- Column Correction File

darkfile ---- Dark Frame

dgeofile ---- Geometric Distortion Correction File

drkcfile ---- Cte Corrected Dark

flshfile ---- Post-flash Image

idctab ---- Image Distortion Correction File

imphttab ---- Photometry Keyword Table

mdriztab ---- Multidrizzle Parameter Table

mlintab ---- Mama Linearity Table

npolfile ---- Non-polynomial Offset

oscntab ---- Overscan Region Table

pctetab ---- Pixel CTE Correction Table

pfltfile ---- Pixel To Pixel Flat Field Image

satufile ---- Full-Well Saturation Level Map

shadfile ---- Shutter Shading Correction Image

snkcfile ---- Sink Pixel Correction Image

spottab ---- Spot Position Table

cos

hst_cos_0353.imap      Toggle N/A


badttab ---- Bad Time Interval Table

bpixtab ---- Data Quality (Bad Pixel) Initialization Table

brftab ---- Baseline Reference Frame Table

brsttab ---- Burst Parameters Table

deadtab ---- Deadtime Reference Table

dgeofile ---- Geometric Distortion Correction File

disptab ---- Dispersion Relation Table

flatfile ---- Flat Field

fluxtab ---- Sensitivity Reference Files

geofile ---- Geometric Distortion Correction

gsagtab ---- Gain Sag Reference Table

hvtab ---- High Voltage Reference Table

lamptab ---- Template Calibration Lamp Spectra Table

phatab ---- Pulse Height Parameters Table

proftab ---- 2D Spectrum Profile Table

spottab ---- Spot Position Table

spwcstab ---- Spectroscopic WCS Parameters Table

tdstab ---- Time Dependent Sensitivity Table

tracetab ---- 1D Spectral Trace Table

twozxtab ---- Two-Zone Spectral Extraction Parameters Table

wcptab ---- Wavecal Parameters Reference Table

xtractab ---- 1-d Extraction Parameters Table

xwlkfile ---- X Walk Correction Lookup Reference Image

ywlkfile ---- Y Walk Correction Lookup Reference Image

nicmos

hst_nicmos_0250.imap      Toggle N/A


darkfile ---- Dark Frame

flatfile ---- Flat Field

idctab ---- Image Distortion Correction File

illmfile ---- Illumination Pattern File

maskfile ---- Static Mask File

nlinfile ---- Detector Linearity Correction File

noisfile ---- Detector Read-noise File

pedsbtab ---- pedsbtab

phottab ---- Phototmetric Calibration Table

pmodfile ---- Persistence Model Files

pmskfile ---- Persistence Mask Files

rnlcortb ---- Nonlinearity Power Law Table

saacntab ---- SAACLEAN Task Parameters

saadfile ---- Post Saa Dark Assoc.

tdffile ---- Temperature Dependent Flat Fields

tempfile ---- Temperature-dependent Dark Reference File

zprattab ---- Nonlincor Zeropoint Scaling Table

stis

hst_stis_0365.imap      Toggle N/A


apdestab ---- Aperture Description Table

apertab ---- Aperture Throughput Table

biasfile ---- Bias Frame

bpixtab ---- Data Quality (Bad Pixel) Initialization Table

ccdtab ---- Ccd Parameters Table

cdstab ---- Cross-disperser Scattering Table

crrejtab ---- Cosmic Ray Rejection Parameter Table

darkfile ---- Dark Frame

disptab ---- Dispersion Relation Table

echsctab ---- Echelle Scattering Table

exstab ---- Echelle Cross-Dispersion Scattering Table

gactab ---- Grating-Aperture Correction Table

halotab ---- Detectore Halo Table

idctab ---- Image Distortion Correction File

imphttab ---- Photometry Keyword Table

inangtab ---- Incidence Angle Correction Table

lamptab ---- Template Calibration Lamp Spectra Table

lfltfile ---- Low-order Flat Field Image

mlintab ---- Mama Linearity Table

mofftab ---- Mama Offset Correction Table

pctab ---- Photometric Correction Table

pfltfile ---- Pixel To Pixel Flat Field Image

phottab ---- Phototmetric Calibration Table

riptab ---- Echelle Ripple Table

sdctab ---- 2-d Spectrum Distortion Corrections

sptrctab ---- 1-d Spectrum Trace Table

srwtab ---- Scattering Reference Wavelength Table

tdctab ---- Nuv Dark Correction Table

tdstab ---- Time Dependent Sensitivity Table

teltab ---- Telescope Point Spread Function Table

wcptab ---- Wavecal Parameters Reference Table

xtractab ---- 1-d Extraction Parameters Table

synphot

hst_synphot_0067.imap      Toggle N/A


obsmodes ---- Observing Modes Table

thermal ---- Component Thermal Tables

thruput ---- Component Throughput Tables

tmctab ---- Master Component Lookup Table

tmgtab ---- Graph Table

tmttab ---- Thermal Component Lookup Table

wfc3

hst_wfc3_0587.imap      Toggle N/A


atodtab ---- Analog To Digital Lookup Table

biacfile ---- CTE Bias Frame

biasfile ---- Bias Frame

bpixtab ---- Data Quality (Bad Pixel) Initialization Table

ccdtab ---- Ccd Parameters Table

crrejtab ---- Cosmic Ray Rejection Parameter Table

d2imfile ---- Column Correction File

darkfile ---- Dark Frame

dfltfile ---- Delta Flat Field Image

drkcfile ---- Cte Corrected Dark

flshfile ---- Post-flash Image

idctab ---- Image Distortion Correction File

imphttab ---- Photometry Keyword Table

mdriztab ---- Multidrizzle Parameter Table

nlinfile ---- Detector Linearity Correction File

npolfile ---- Non-polynomial Offset

oscntab ---- Overscan Region Table

pctetab ---- Pixel CTE Correction Table

pfltfile ---- Pixel To Pixel Flat Field Image

satufile ---- Full-Well Saturation Level Map

snkcfile ---- Sink Pixel Correction Image

wfpc2

hst_wfpc2_0250.imap      Toggle N/A


atodfile ---- Analog To Digital Converter Lookup Table

biasfile ---- Bias Frame

darkfile ---- Dark Frame

dgeofile ---- Geometric Distortion Correction File

flatfile ---- Flat Field

idctab ---- Image Distortion Correction File

maskfile ---- Static Mask File

offtab ---- Inter-chip Offsets Table

shadfile ---- Shutter Shading Correction Image

wf4tfile ---- WF4 Correction Table


Context History (more history, all contexts)

Start Date Context Status Description
2024-05-20 hst_1157.pmap operational The ACS WFC bias, dark, CTE dark, and sink files were generated following the ACS WFC anneal on May 15, 2024, and should be used to calibrate ACS WFC observations taken between March 25, 2024 and May 15, 2024.
2024-05-15 hst_1156.pmap archived Since 2019, IR bad pixel tables and superdarks incorporate a new time dependence characteristic to the pixel quality for better calibration and flagging and tracking bad pixel behavior. These behaviors include hot and unstable pixels and whether any bad pixel has regained its stability since launch. Two new bad pixel tables are present here for data obtained through Cycles 29 and 30 with USEAFTER dates of November 29 2021 and November 05 2022, respectively. In addition, an error has been identified that overflags cold and unstable pixels in the current bad pixel table that uses cycle 28 data, 61s2016oibpx.fits. This error may affect the science of observations, and a new cycle 28 ir bad pixel table with the same USEAFTER of November 5 2020 that address and resolves this issue is presented here to replace 61s2016oibpx.fits. Information regarding pixel history and updates to the bad pixel table can be found in WFC3 ISRs 2019 03, 2019 04. Since launch, a litany of circular aberrant regions called blobs have appeared in IR images. These blobs are regions of lower sensitivity that appear due to bits of epoxy from the CSM motor shafts depositing onto the mirror. Tracking and flagging these blobs in the IR bad pixel table is therefore imperative so that they may be masked in any science images where they may appear. Information regarding blobs can be found in WFC3 ISR 2018 06. The two most recent blobs appeared on MJD 59378 and 59860. The existing table for the blob that appeared in MJD 59378, with a useafter of June 13 2021, uses Cycle 27 bad pixel data, though it appeared during Cycle 28. Likewise the existing table for the blob that appeared on 59860 MJD with a useafter of October 8 2022, uses Cycle 27 bad pixel data though they appeared during Cycle 29. These two bad pixel tables are being updated to reflect the bad pixel history concurrent with the appearance of the blob, such that the Cycle 28, useafter June 13 2021, blob contains Cycle 28 bad pixel data, and the Cycle 29 blob, useafter October 08 2022, blob contains Cycle 29 bad pixel data. In total, 5 bad pixel tables are being delivered, two new bad pad pixel tables using Cycle 29 and 30 data, and three new tables using Cycle 28 and 29 to replace the ones currently in CRDS. Additional information regarding these deliveries can be found in WFC3 ISR 2024 02.
2024-04-22 hst_1155.pmap archived Delivery of new STIS CCD bias and dark reference files for CCD data taken between January 24 and March 19, 2024. The files were generated from data taken in the same time frame under STIS calibration programs 17377 and 17375.
2024-04-22 hst_1154.pmap archived Updated ACS SBC TDS synphot throughput files are being delivered that adjust the system throughput to reflect the changing sensitivity of the detector. These files are being delivered with new sensitivity measurements taken 2024 Mar 18, and are extrapolated to 2026-04-01. The default THROUGHPUT column matches that of the extrapolation date.